Stockholders' Equity (Tables)

9 Months Ended

Mar. 31, 2018

Summary of Reconciliation of Warrants to Purchase Common Stock

The following table provides a reconciliation of warrants to purchase shares of the Company’s common stock for the nine months ended March 31, 2018 and 2017:

	Nine Months Ended March 31,
	2018					2017
				Weighted				Weighted
				Average				Average
	Number of			Exercise		Number of		Exercise
	Warrants			Price		Warrants		Price
Balance at beginning of period		623,605		$	2.50		623,605	$	2.50
Issued		409,091			1.10		—		—
Expired		(623,605	)		2.50		—		—
Balance and exercisable at end of period		409,091		$	1.10		623,605	$	2.50

Summary of Restricted Stock Unit Activity

The following table provides a reconciliation of RSU activity under the 2016 Plan for the nine months ended March 31, 2018:

				Weighted
	Number of			Average
	Restricted			Grant Date
	Stock Units			Fair Value
Nonvested at July 1, 2017		248,500		$	1.77
Granted		425,616			1.07
Forfeited		(45,000	)		1.77
Nonvested at March 31, 2018		629,116		$	1.30

Summary of Performance Stock Unit Activity

The following table provides a reconciliation of PSU activity under the 2016 Plan for the nine months ended March 31, 2018:

				Weighted
	Number of			Average
	Performance			Grant Date
	Stock Units			Fair Value
Outstanding at July 1, 2017		210,000		$	1.77
Granted		115,000			1.13
Vested		(48,332	)		1.52
Forfeited		(35,000	)		1.77
Outstanding at March 31, 2018		241,668		$	1.52

Summary of Market-Based Restricted Stock Unit Activity

The following table provides a reconciliation of market-based restricted stock units for the nine months ended March 31, 2018:

				Weighted
	Number of			Average
	Market-Based			Grant Date
	Stock Units			Fair Value
Outstanding at July 1, 2017		700,000		$	1.35
Forfeited		(200,000	)		1.09
Outstanding at March 31, 2018		500,000		$	1.45

Compensation Expense from Stock-Based Payment Awards

The Company’s consolidated statements of comprehensive loss included total compensation expense from stock-based payment awards for the three and nine months ended March 31, 2018 and 2017, as follows (in thousands):

	Three Months Ended				Nine Months Ended
	March 31,				March 31,
	2018		2017		2018		2017
Compensation expense included in:
Research and development	$	315	$	267	$	907	$	803
General and administrative		128		377		823		971
	$	443	$	644	$	1,730	$	1,774

2016 Long Term Incentive Plan [Member]

Stock Option Activity Under Plan

The following table provides a reconciliation of stock option activity under the Company’s equity incentive plans for the nine months ended March 31, 2018:

						Weighted
				Weighted		Average
				Average		Remaining		Aggregate
	Number of			Exercise		Contractual		Intrinsic
	Options			Price		Life		Value
						(in years)		(in thousands)
Outstanding at July 1, 2017		6,045,685		$	3.34
Granted		530,000			1.58
Forfeited		(1,470,530	)		3.48
Outstanding at March 31, 2018		5,105,155		$	3.12		5.54	$	41
Exercisable at March 31, 2018		3,207,063		$	3.36		3.71	$	20